Celebrate an ancient sea creature with these new Protect Sea Turtles stamps from the U.S. Postal Service.

The stamps showcase a gray-green Kemp’s ridley (Doug Perrine, photographer); a black and white leatherback (Rowan Byrne, photographer); an olive ridley (Solvin Zankl, photographer); a green sea turtle (David B. Fleetham, photographer); a mottled orange-brown loggerhead (James D. Watt, photographer); and a brownish-yellow hawksbill (Claudio Contreras, photographer).

The Protect Sea Turtles stamps are being issued as Forever stamps. These Forever stamps will always be equal in value to the current First-Class Mail one-ounce rate.